void RefreshItems()
{
lvBoughtItems.Items.Clear();
lvBoughtItems.Groups.Clear();
Person person = GetSelectedPerson();
if (person != null)
{
foreach (Payment pay in person.Payments)
{
ListViewGroup lvg = new ListViewGroup(pay.Name);
lvBoughtItems.Groups.Add(lvg);
foreach (Product p in pay.Products)
{
ListViewItem lvi = lvg.Items.Add(p.Name);
lvi.SubItems.Add(p.Price.ToString("C"));
lvi.Tag = p;
if (p.Receivers.Count == persons.Count)
{
lvi.SubItems.Add("Everyone");
}
else
{
lvi.SubItems.Add(string.Join(", ", p.Receivers));
}
lvBoughtItems.Items.Add(lvi);
}
}
}
}
Payment GetDefaultTransaction(Person p)
{
Payment pay = p.Payments.FirstOrDefault(t => t.Name == "Default");
if (pay == null)
{
pay = new Payment("Default", p);
}
return(pay);
}
void SelectPerson(Person p)
{
foreach (ListViewItem item in lvPeople.Items)
{
if (item.Tag == p)
{
item.Selected = true;
break;
}
}
}
private void btnClearItems_Click(object sender, EventArgs e)
{
Person selected = GetSelectedPerson();
selected.Payments.Clear();
Recalculate();
RefreshItems();
RefreshPersons();
RefreshButtons();
RefreshSummary();
SaveData();
}
public void SetDebt(Person from, Person to, decimal debt)
{
Row t = new Row(from, to);
if (debts.ContainsKey(t))
{
debts[t] = debt;
}
else
{
debts.Add(t, debt);
}
}
void RemovePerson(Person person)
{
foreach (Person per in persons)
{
foreach (Payment pay in per.Payments)
{
foreach (Product prod in pay.Products)
{
prod.Receivers.Remove(person);
}
}
}
persons.Remove(person);
}
private void btnAddPerson_Click(object sender, EventArgs e)
{
InputBoxResult ibr = InputBox.Show("Name", "New person", "");
if (ibr.OK)
{
Person p = new Person(ibr.Text);
persons.Add(p);
RefreshPersons();
RefreshButtons();
SelectPerson(p);
// No need for recalculations as this one doesn't contribute with any money yet
SaveData();
}
}
private void btnRemovePerson_Click(object sender, EventArgs e)
{
foreach (ListViewItem itm in lvPeople.SelectedItems)
{
Person p = itm.Tag as Person;
if (p != null)
{
RemovePerson(p);
}
itm.Remove();
}
Recalculate();
RefreshButtons();
RefreshSummary();
SaveData();
}
private void btnEditItem_Click(object sender, EventArgs e)
{
Product item = GetSelectedProduct();
Person selected = GetSelectedPerson();
if (item != null)
{
item = ItemEditor.Edit(item, persons);
if (item != null)
{
Recalculate();
RefreshPersons();
RefreshItems();
RefreshSummary();
SaveData();
SelectPerson(selected);
SelectProduct(item);
}
}
}
private void btnAddItem_Click(object sender, EventArgs e)
{
Person selected = GetSelectedPerson();
Payment payment = GetDefaultTransaction(selected);
Product product = new Product("New product", 100, payment, new List <Person>());
Product edited = ItemEditor.Edit(product, persons);
if (edited != null)
{
Recalculate();
RefreshItems();
RefreshPersons();
RefreshButtons();
RefreshSummary();
SaveData();
SelectPerson(selected);
SelectProduct(edited);
}
else
{
product.Transaction = null;
}
}
void RefreshSummary()
{
lblOweIn.Text = "People owing you money:";
lblOweOut.Text = "People you owe money:";
lblTotDebt.Text = "";
lblTotSpent.Text = "";
lvIncome.Items.Clear();
lvOutcome.Items.Clear();
if (lvPeople.SelectedItems.Count > 0)
{
Person person = lvPeople.SelectedItems[0].Tag as Person;
if (person != null)
{
lblOweIn.Text = string.Format("People owing {0} money:", person.Name);
lblOweOut.Text = string.Format("People {0} owes money:", person.Name);
decimal totSpent = person.GetTotalSpent();
decimal totDebt = currentCalculation.GetDebt(person);
decimal totSum = totSpent + totDebt;
lblSum.Text = totSum.ToString("C");
lblTotSpent.Text = totSpent.ToString("C");
lblTotDebt.Text = Math.Abs(totDebt).ToString("C");
if (totDebt >= 0)
{
label5.Text = "Total debt:";
if (totDebt > 0)
{
lblTotDebt.ForeColor = Color.Red;
}
else
{
lblTotDebt.ForeColor = SystemColors.ControlText;
}
}
else
{
label5.Text = "Total income:";
lblTotDebt.ForeColor = Color.Green;
}
foreach (var debtGroup in currentCalculation.GetDebts(person).GroupBy(k => k.Item2))
{
decimal debt = debtGroup.Sum(g => g.Item3);
ListViewItem lvi = new ListViewItem(debtGroup.Key.Name);
if (debt > 0)
{
lvi.SubItems.Add(debt.ToString("C")).ForeColor = Color.Red;
lvOutcome.Items.Add(lvi);
}
else if (debt < 0)
{
lvi.SubItems.Add((-debt).ToString("C")).ForeColor = Color.Green;
lvIncome.Items.Add(lvi);
}
}
}
}
}
public decimal GetDebt(Person from, Person to)
{
// Take all the records with the right byer and receiver and sum the debt
return(GetDebts(from).Where(r => r.Item2 == to).Sum(r => r.Item3));
}
public decimal GetDebt(Person from)
{
return(GetDebts(from).Sum(t => t.Item3));
}
public IEnumerable <Tuple <Person, Person, decimal> > GetDebts(Person from)
{
// Take all the records with the right byer
return(debts.Where(r => r.Key.Item1 == from).Select(r => new Tuple <Person, Person, decimal>(r.Key.Item1, r.Key.Item2, r.Value)));
}
